LFY-403B Digital Charge Quantity Tester

Main purpose 
Under laboratory conditions, the electrostatic properties of the product are evaluated, that is, the amount of charge of the product is tested. The charged charge quantities of various powders, liquids and solids can be measured. 
Instrument characteristics 
1. This instrument is a digital display charge measuring device designed for measuring the charge quantity of objects. It consists of a small Faraday cylinder and an electrostatic potentiometer, and directly displays the charge quantity value of the sample. Due to the use of large-scale integrated circuits, high input impedance amplifiers, and high-precision precision capacitors, etc., this instrument has the advantages of high accuracy, stable performance, small size, simple operation, and convenient use. It can be used in conjunction with any shape and size of Faraday cylinders, etc. 
2. No calculation is required. The charge quantity value is directly displayed in numbers. 
3. High precision, high resolution, and excellent linearity. 
4. Stable reading. 
5. It is equipped with a reset switch, making the reset operation very convenient. 
Technical indicators

1. Static charge measurement range: Measurement range: ±1nC to ±2μC; 
2. Digital display: It can show the positive and negative polarities of the charge, with the negative polarity indicated by the "-" sign;
3. Accuracy: ±1% 
4. Dimensions of the Faraday cylinder: Inner cylinder: 15cm * 20cm, Outer cylinder: 17cm * 23cm